The video was posted on Facebook by Arlete Arantes from Brazil. It's unclear when the video was recorded.
So, what's actually going on in the video?
According to the University of Rochester Medical Center, the "walking" is not so much a miracle but a natural newborn reflex.
Called the "stepping reflex," this reflex is also referred to as the walking or dance reflex because the baby appears to take steps or dance when held upright with his or her feet touching a solid surface. This reflex lasts until the baby is about two-months-old. It helps babies develop and survive.
"Gotta stretch the legs after a 9 month journey," writes one person on Reddit, where a GIF of the video has been posted.
"That baby's name: Usain Bolt," jokes another.
"That kid is going places," comments a third Redditor. Click for more trending news
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